Cutter guiding means



Aug. 17, 1943. HJBIELER 2,326,922

CUTTER GUIDING MEANS Filed Aug. 7, 1959 3 Sheets-Sheet 1 ,lFvvewfor.

Hermann Bide?" Aug. 17, 1943.-

H. BIELER CUTTER GUIDING MEANS Filed Au 7, 1939 wil In! If; I

3 Sheets-Sheet 2 IIIIIIIIIIIIHI g I flgifb- ,l'fivenibn Aug. 17 1943. H. BIELER CUTTER GUIDING MEANS Filed Aug. 7, 1939 3 Sheets-Sheet 3 r 7 1 9 w a m w w F m w Xi m r F5. IE lawman".

lever Z'Lstrikes consecutively againsttheafiu i e;

' cip roe tiiryti swmg tino i nient of' the lever;

end of-the'lvez 21 semat the" fr e eta in ;the course of the operative sti okeof v'e'zi'f l l thecamiing 24' situateglin theyposi-- tion; ehown"'inf'Figu1 e '5; in "Whieh lpositior zi the" v teeth or cam-like projectione of th' ring 2;i=ai e situated opposite;Correspondingteethor ;cam-; 1 "theseinstance rec rocato'ry Inovementfoftheswinging IeYr'iL-f rack 29 and thejgear iWhlQZ {a e pro- 1 The deeciibed fina ehine s6 [const 'ct'ed' tha li keprojeetibns'of thefihiimov loitering-2 3; these 1 5 itsls'opeifative =s't k'carries out 2substantial1y the f teethijbeingjinicontact withfeaehothe ergame Verm er -d 11 1161113118" device inthiepos'itiongthe front? hy-the ariow tool-homey? are "s itua'ted'injthe r eratiyepositiom I its projectionsfiare moied V sponding'pi oj'ections oft .'respondingito theflupward stroke rofi'the'sleevehzl. l. U r i, V

This turning movement is made'ipossible since] w q ec seld de ec p ne, n combmw w r -ahdiylin'iFigur s'1and-3 surfaces efsthejit eth, qf,th twoimg s za angi i V J An-imp'erta' *dis tincti on isfthf ens, s that'they V structionehownin igures 1- and 2, the cbunter Ofand thet v x l-t 1s desirable to com fine the to "Mmen r ach-o era iv ro ejei he l e T l s er" 'O 3Whi v very. iagth -h mm y -lik la er-21'strike ag'aifistj t strikegagaihe'tEthe' b'earingf-B, Iwith theFlever 212' {one ofthe' immovable abutm f n injF-LgHre-Ka firmly connectediwi-th the rniiqvaiole"eanit-ring Then the springl 26 c parting fif'ofn' the'seope' en intent bfithe invention;

"with "saidqto tiimitne tom teem n -ta cuam edges 1 tool outof -eq'ntaetwith sa d wo'rk piece Ang at east t'wok cuttin e es 'ae apteaem engage the rack 2'9,'.constitutes a counter-lslipport'fdi' the 'tibh ht i l e e t me moving Said -'gearwhee128'. r v

-- The turning movement of h t 4, which is tQOlhQldlng means and adapted tomove said tool;

, the end of each operative stroke of th'ejlever 4 tool' holding-means; means connected with said ,holdinmeans in a direction perpendicular to the caused'by. the described construction, withdra gagement with the surface of the workpiece at-- When planing steels o-r too1s havi'ng'a front cutting edge and a form-cutting edge areIutiliz ed; timed 7 means" 'i ause the? lasti 7 whereby the cutting edges While m'oving along' aj" 'm a i m ve 611 1 0 t lding means f d' y 'curved path (Fig. 7)j*produce a, comparativelyifimp r n 1 9 n meensen e g at ,7 a

' least a part of saidvtool holdln means toturn range the parts causing the-turning movement- $515-$001 in; P course ofrlthe moiimentvbf ai I 4 the midi ile; of its front cutting edge;-

, in such manner that the steel 0 1- 61 jstur d tool holding neans m vSaid e fid i i i v f I I about a longitiidinal 'axisi which passes through tionl. f

'.The movement Orin-he tool is thiis Canaan; i 'e il wb fiti e ede d p 'e ae this construction, in thefirst placejbya rotationi i W r d device comprising, incombinae 7 r the gear wheel' l8ecause'd bythegmaesaoand iQ withtool o dingrmea isi nsmo e-s id.

Y 1 3| in the'colirse .of, the'swinging-movement' of kh nens, eans' connected;with-'said V the lever M abqut the pin 32, :said 'swin-gin'g- 't0o1 ho1ding meansiand adapted tq meviefea-idtool" 7 rmovement being ca s by t connecting o rholdmg means in a'direction perpendicular tovthe V [4; th positien'ofth'e ri g -2 4 shown in Figure 6'- j initheycon- A 1 shown in "two eutting edges adapted-to engage Y aiddevicecomprisin in -cenibina ti'Gfi-With a toot-holding element-means movin said too1 h'OIding eIemGnM-g-anG*means connected v "holding-element and -operalolfat. th "eccs i'npletion of-gthefeutting operlajticintdr'ais -thesteer-oniithe 'workpiec and simultaneously f-the devioe'foiguidin-g-ia iieeiprocableftoolvhavmovement of thetool inthe coursesof the'c itting 55 ,operati0n, steering meansconnectedwith thesec v ondrmentioned mean and'operableat theIen-d oi" saideuttingjop'eration to actuate theiast-m'en- 6 -3-. A device fer niding a reciproabie tool hav k 11; and inw the Second placekbythe ope ation, o movement the 91 th courseoffthe cutting r -the1ever- 21 mo ing the ring v24 fromithe' position o ration, elementswovabl at e y to each shgwn in Figure'fi to thepo sition shown in Figure v other tdvary' the operative height'oi said ele- 7 Sand vicefversa' during the-teversals of the rements. and; connected with. said tool holding 

